Scanner scanner1=new Scanner(file1);

            for(;scanner1.hasNext();){

                try{

                    int a=scanner1.nextInt();

                    System.out.println(a);

                }

                catch(InputMismatchException e){

                    scanner1.next();

                }

            }

            Scanner scanner1=new Scanner(file1);

            String regex="\\D+";

            scanner1.useDelimiter(regex);//这是不要哪些的

            for(;scanner1.hasNext();){

                int a=scanner1.nextInt();

                System.out.print(a);

            }